The Sea Prince

...Or so he once was. Born into royalty, Caspian was once regarded as the heir to the throne, expected to rule side-by-side with his twin sister. Since his birth, however, the king and queen noticed an uncanny foul aura unlike any other. It grew more prominent as years passed until the king decided he could no longer sit back and watch. Still, he couldn’t bear to kill his son by his own hand; thus, Caspian was set into the horrors of the deep sea at age six, expected to die by the lurking monsters. It was too late by then, however, as his powers had already manifested. Now, at the young age of just seventeen, he rules those same beasts in the depths of the ocean against the benevolent princess--his sister. The Sea Prince is regarded as the devil of water. The source of every tsunami, every storm, every maritime disaster. The Sea Prince has no mercy, and for that reason, you must never face the ocean: you will always lose.

The Sea Prince has no heart, or so they say.